Carbureter.



PATENTED OCT. 3, 1905.

W. A. HATCHER. CARBURETER. APPLICATION FILED FEB. 23.1905.

2 SHEETS-SHEET 1.

/NVENTO/? Maw ATTORNEYS NO. 800,647. PATEIITED 00$. 3, 1905.

W. A. HATGHER.

CARBURETER.

APPLICATION FILED FEB. 23, 1905.

2 SHEETS-SHEET 2.

WITNESSES. IIVI/EIW 'OH I Q B) E 27 TOR/VEVS UNITED STATES PATENT OFFIGE.

. (WILLIAM A. HATCHER, or OLEVELAiInQOHIO, ASSIGNOR TO THE BREW-HATCHERICOMPANY, on

TION'OF OHIO.

CLEVELAND, OHIO, A CORPORA- CARBURETER.

Iatented Oct. 3, 1905.

I Application filed February 23.1905. strainaziaesa To all whom itmwy concerns Be it known that'I, WILLIAM A. HATGHER, a citizen of the United States of America, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Carbureters, and I hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to'make and use the same. f

This invention relates, to improvements in carbureters more especially designed for use in connection with; an internal combustion engine.

The primary object of this invention is to positively insure an adequate and suitable feed of a suitable mixture'of air and oil to the passageway employed in feeding the said mixture in anaeriform state, to the cylinder of an internal-combustion engine at all times regardless of the speed of the engine.

Another object is to provide'acarbureter which is simple in construction and reliable in its operation.

Another. object is to provide a meritorious combination of my improved carbureter relative to the feed passage-ways employed in conducting the combustible mixture to thediflerent cylinders of an internal-combustion engine having a plurality of cylinders.

With these objects In viewthis invention consists in certain features of construction and combinations of parts hereinafter -described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation largely in central section, illustrating myimproved carbureter and'the adjacent portions of two engine-cylinders with which the carburetor is connected. Fig. 2 is a section on line 2 2, Fig. 1, looking downwardly. Fig. 3 is a section on line 3 3, Fig,- 1, looking downwardly. Fig. A is a section and corresponding in the main .with Fig. 3, 'exceptthat in Fig.4 the cut-olf or valve L instead of the cut-ofl or valve P of the two cut-oil's or valveswhich control the passage of the combustible mixture through the mixing-chamber of the carburetor is shownin its closed position, and the flap-valves which control the passagefof air't'rorn the air-chamberto the mixing-chamber are shown open. Fig.

' voir.

5 is a central verticalsection on line 5 5; Fig.

4. Fig. 6 is a vertical section showing the discharging end of the air-chamber of the carbureter, the adjacent portion of the mixing-chamber, and the aforesaid flap-valves partially open.

Referring to dicates an oil-reservoir, and a a body of gasolene or hydrocarbon-oil within the said reservoir. Within the chamber of the reservoir A is arranged a vertically-movable float B, which is provided at the top and centrally with a guide-forming stem 12, which projects vertically through a vent-hole 10, formed in and centrally of the top of the reservoir. The float B is provided at the bottom and centrally with a depending-stem b, which terminates at its lower end? in a valve-forming head 13,-

Which is arranged to-engage an annular seat- 14,.formed around the lower end of the oilinlet 15 of the chamber of the reservoir A, which inlet is formed in the bottom of the said chamber 'and'connectswith the oil-supply passage-way 16, arranged below the reser- The valve 13 closes the inlet 1-5 or es: tablishes communication between the said inlet and the passage-way 16, according as the float B is in its uppermost or below its uppermost position. In Fig. 1 of the drawings the reservoir Acontains enough oil a to hold the Fig. l :of the drawings, A in floatB in its uppermost position. At one side and externally of the reservoir A is formed an air-chamber D, which is provided at one side with an air-inlet d, which communicates with the external atmosphere. A pipe G is arranged vertically and centrally of the chamber D and extends through the said chamber.

The pipe G is externally screw-threaded at.

its lower end and screwed into a correspondingly-serewthreaded hole 18, formed in the bottom of the chamber 1). The passage-way g, formed in and extending through the'pipe (Jr, communicates at its lower end with one' end of a horizontal passage-way 20, which communicates at its opposite chamber of the reservoir A. Above the airchamber D is formed a mixing-chamber-K, which is enlarged at its lower end, as at It, next above and around the upper end of the air-chamber. The discharge of oil fromthe upper and discharging end of the passage-way g is controlled by a needle-valve h, which is arranged vertically-and centrally of and exend with the i wardly-diverging passage-ways 6, arranged the passage-ways 6.

.each other and supported in an shown) of the engine.

above the said chamber, which passage-ways feed the aeriform combustible mixture formed in the said chamber to diiferent cylinders f,

-respectively,of an internal-combustion engine. The valve h is applied in any approved manner and is shown screw-threaded at its upper end and engages a correspondinglyscrew-threaded hole 22, formed in and centrally of the top of the casing which forms The passage of the combustible mixture through the mixing-chamber K is controlled by two cut-ofis or slide-valves L and'P, which are movable toward or "from manner. The valve L is arrange at one side of the needle-valve 7t, and the valve P is arranged to operatein the main at the other side of the needle-valve. The valves L and P are arranged horizontally and are preferably supported by and extend externally of oppo site sides, respectively, of'the surrounding wall of the mining-chamber K. The valve P .is large enough'in dimensions to render it capable of projecting past or beyond the needle-valve it in the direction of the valve L when-the valve .P is in its closed position. The valveP is provided atitsinner side edge and centrally with a recess p and is provided centrally of the central wall of the said recess with a groove23, arranged to be engaged by the needle-valve it in the closed position of the valve P, as shown in Fig. 3. The valve L is provided at and centrally of its inner side edge with a tongue Z, which projects inthe direction of the valve It, which tongue is provided centrally with a groove 24, which is arranged to be engaged by the needle-valve ii in the closed position of the valve L, as shown in Fig. "4. Obviously if both valves L and P were closed at the same time the tongue or projecting portion Z of the valve L would engage the recess 12 in the valve P. Obviously, also, the mixing-chamber K is uncovered more when the valveP is only open than when the valve L is only open.

The valve L is operatively connected with the governor-operated rod m, which is operatively connected with the governor" (not The valve P is provided with a stem 25, which extends loosely through a bracket 0, which is secured to the top of, the reservoir A, and thesaid stem is operatively connected with a manually-operated rod n. A'spiral spring Q, which: is

mounted on the stem 25, is confined between the bracket O and a shoulder- 26, formed on the inner end of the said stern, and acts to retain the valve 'P in its closed position. The 'valve P is therefore normally closed and the valve L is normally open; but obviously the valve L, being operatively connected with the approved governor, (not shown,) will begin to close as' soonas a certain speed of the engine has been 4 attained. It is obvious, therefore, that when excessive speed is desired the valve P is opened.

Asalready indicated, the primary object of this invention is to provide an adequate and suitable feed of ,oil and air into the mixing chamber at all times, and to accomplish this object several flap-valves R are arranged within the lower and laterally-enlarged portion is of the mixing-chamber K and around the upper end of the pipe G and normally cover or close the upper end of the air-chamber D. In the carbureter illustrated four valves R, in the form of segmental sections, are hinged or pivotally connected to the bottom of thernixing chamber K externally of the air-chamber D and arranged to swing upwardly. The valves R normally rest upon an annular rim 27, formed around the upper end of the chamber ll). The rim 2? prevents the valves lit from swingingdownwardly beyond their closed and normal position inmoving from their u'pwardly-swung and open position into their closed and normal position, Each valve R is provided at the outer side of the rim 27 with 'a laterally and outwardly projecting lug r,

which is pivoted, as at 28, horizontally and at a right angle to thevalveiz to a lug or lugs 30, formed upon and projecting upwardly from the bottom of the enlarged portion in of the mixing-chamber. i

It will be observed that the valves it open more orless, according as the suction which is created within the mixing-chamber K when one or both of the valves L and P are open during the operation of the pistons (not shown) within the en'gine-cylindersf increases or decreases, and that the said valves close by gravity upon a complete cessation of the operation of the, engine. It will be observed that when the valves it are full open, as shown in Fig. 5, they strike the surrounding wall of the chamber K at the top of the enlarged lower portion 7:: of the said chamber, and the arrangementof the parts is such that the valves R in their full open position project upwardly and inwardly, so that there is no liability of the said valves being swung open too far, and thereby being prevented from closing again by gravity. The valves R when full open will gradually swing downwardly with a decrease in the suction within the mixing-chamber K, and the passage of the air from within theair-charnber D upwardly around the dis- 7 means for supplying oil to the last-mentionedv of the pipe G passes with the desired velocity in close proximity to the discharging end of the passage-way g andoperates to maintain a suitable feed of oil from the said passageway.

What I claim is I; In a carbureter, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air-chamber having an air-inlet and arranged a suitable-distance below the aforesaid passage-way; a mixingchamber located between the air-chamber and the said passage-way and arranged to discharge into the said passage-way; means for charge of oil from the said pipe, and several suitably-supported flap-valves normally covering the air-chamber] and arranged to be swung into the mixing-chamber by suction created within the mixing-chamber.

2. In a carbureter, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air-chamber having an air-inlet and arranged a suitable distance below the aforesaid passage-way;a mixingchamber located between the air-chamber and the said passage-way and arranged to discharge into the said passage-way; means for controllingthe discharge of the combustible mixture from the mixing-chamber tothe said passage-way; an oil-conducting passage-way arranged centrally of the air-chamber and discharging upwardly into the'mixing-chamber;

passage-way; a valve for regulating the discharge of oil from the oil-conducting passageway, and suitably'supported flap-valves normally covering and arranged radially of 'the air-chamber in position to be swung upwardly and outwardly by suction created within the mixing-chamber.

3. In a carbureter, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air-chamber having an air-inlet and arranged a suitable distance below the aforesaid passage way; a mixingchamber located between the air-chamber and the said passageway and arranged to discharge intothe said passage-way; an oil-conducting passage-way arranged centrally of the air-chamber and discharging upwardly into the mixing-chamber: means for supplying oil to the last-mentioned passage-way; .a valve for regulating the discharge of oil from the oil-conducting passage-way, and suitably-applied flap-valves normally covering and arranged radially of the air-chamber in position to be swung upwardly and outwardly by 5110- tion-created within the mixing-chamber, and a rim formed around the upper end of the air-chamber and affording a bottom bearing to the flap-valves. 4. In a carbureter, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air-chamber having an air-inlet; a mixing-chamber located between the air-chamber and the said passageway and arranged to discharge into the said passage-Way; an oil-conductingpassage-way arranged centrally of the air-chamber and discharging into the mixing-chamber; means for supplying oil to the lastqnentioned passage-way; a valve for regulating the discharge of oil from the oil-conducting passage-way,

suitably-applied flap-valves normally closing the discharging end and arranged radially of the air-chamber externally of and around the oil-conducting passage-way, said flap-valves being arranged to be swung upwardly and outwardly by suction created within the mixingchamber and project upwardly and inwardly in their full open position.

5. In acarbureter, the combination, with a passage-way for feeding a combustible aeri- .form mixture into the cylinder of an internalcombustion engine, of an air-chamber having an air-inlet; a mixing-chamber arranged to discharge into the said passage-way; an oil-' conducting passage-way arranged centrally of the air-chamber and discharging into the mixing-chamber; meansfor supplying oil to the last-mentioned passage-way; a valve for regulating the discharge of oil from the oilconducting passage-way. and flap-valves nor-J mally closing the discharging end'of the airchamber around and externally of the last,

mentioned passageway and radially of-the air-chamber and in position to be swung upwardly and outwardly, said flap-valves pro? jecting upwardly and inwardly in their full I open position. v

6. In a carburetor, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air chamber arranged at an elevation below the cylinder and provided at one side with an air-inlet; 'a rim around the upper end of the air-chamber; a mixing-chamber located next above the airchamber between the airchamber andthe aforesaid passage way and enlarged at its lower end and arranged to discharge upwardly into the said passage-way; means-for controlling the discharge of the combustible mixture from the mixing-chamber to the said passageway, an oil-conductingpassage way arranged centrally of the air-chamber and discharging upwardly into the mixing-chamber; means for supplying oil to the last-mentioned passage-way; a valve for regulating the discharge of oil from the oil-conducting passage-way, and several flap-valves normally resting on the aforesaid rim and closing the discharging end of the air-chamber and hinged or pivoted externally of the air-chamber, said flap-valves being arranged to swing upwardly and out wardly within the lower enlarged portion of the mixing-chamber by suction created within the mixing-chamber and having a limited upward movement. 4

7. In a carbureter, the combination, with a passage-way for feeding a combustible aeriform mixture into the cylinder of an internalcombustion engine, of an air-chamber provided with an air-inlet; a rim around the upper end of the air-chamber; a mixing-chamber located next above the air-chamber between the air-chamber and the aforesaid passage way, said mixing-chamber being enlarged transversely at its lower end and arranged to discharge upwardly into the said passage-way; means for controlling the discharge of the combustible mixture from the mixing-chamber to the said passage-way; an oil-conducting passage-way arranged centrally of the air-charm her and discharging upwardly into the min lug-chamber; means for supplying oil to the last-mentioned passage-way; a valve for regulating the discharge of oil from the oil-con ducting passage-way, and several flap-valves normally resting on the aforesaid rim and closing the discharging end of the air-chamber and hinged or pivot/ed externally of the airchamber, said flap-valves being arranged to swing upwardly and outwardly within the lower enlarged portion of the mixing-chain her by suction created within the mirring-chamber "and having a limited upward movement.

8. In a carburetor, the combination, with a.

passage-way forfeeding a combustible aeritorm mixture into the cylinder of an internal combustion engine, or an air-chamber provided with an air-inlet; a mixingchamber located next above the air-chamber between the airchamber and the aforesaid passage-way, said mixing-chamber being enlarged transversely at its lower end and arranged to discharge upwardly into the said passage-way; meansfor controlling the discharge of the combustible 7 mixture from the mixing-chamber to the said passage-way; an oil-cond noting passage-way arranged centrally of the air-chamber and discharging upwardly into the mixing-chamber;

means for supplying oil to the last-mentioned "6' ,passage way; a valve for regulating the dis- 0 charge of oil from the oil-conducting passageway, and several hinged'or pivoted flapwalves normally closing the discharging end of the airchamber and arranged to swing upwardly and outwardly within the lowerenlarged portion behest? of the mixing-chamber by suction created within the mixing-chamber and having a limited upward'movement.

9. ln a carbureter, the combination, with a passage-way; an oil-conducting passageway discharging upwardly into the mixing-chamber; means for supplying oil to the lliiSll-LIIBH" ti'oned passage-way; a valve for regulating the discharge of oil from the oil-conducting passage-way, and several hinged or pivoted flap-valves normally closing the discharging end of the air-chamber and arranged to swing from the air-chamberby suction created within the mixingchamber and having a limited movement in opening.

10. in a carburetor, the combination, with a passage-way for feeding a combustibleaeriform mixture into the cylinder of an internal-.

charging into the mixing-chamber; means for supplying oil to the last-mentioned passageway; a needle-valve for regulating the discharge of oil from the oil-conducting passageway and eatending centrally through and longitudinally of the mixing-chamber, and means whereby a discharge 'of air into the mixing: chamberaround the discharging end of the oil-conducting passage-way by suction created within theorising-chamber is edected, of two slide-valves arranged to control opposite sides respectively 'otthe aforesaid passage-way, one of the slide-valves being large enough in dimensions to render it capable in its closed positioniof projecting pastor-beyond the needle-valve in the direction of the other slide-valve and provided at its innerside edge and centrally with a recess 0 with a groove 23 formed in and centrally of the central wall of the recess, and the last-mentioned valve being provided, at and centrally of its inner side edge, with a tongue"! with a groove 24 formed in and centrally of the tongue, all

arranged and operatingsubstautially asshown,

ior the purpose specified,

11. line carbureter, the combination, with a passageway for feeding a combustible aeriterm mixture into the cylinder of an internal:

combustion engine; a miringwhamberarsageewayg. an air-conducting passageway dis charging into the mixing-chamber; means for supplying oil to the last-mentioned passage way; a needle-valve" for regulating the die ranged to discharge into the aforesaid pascharge of oil from the oil-conducting passagedimensions to render it capable in its closed Way and extending through and longitudinally position of projecting past or beyond the neeof the mixing-chamber, and means whereby dle-valve toward the other slide-valve. a discharge of air into the mixing-chamber In testimony whereof I sign the foregoing 5 ground the dischargilgig end of the oiil-cofispecification in the presence of two witnesses. 5 ucting passage-way ysuction create wit 1 in the mixing-chamber is effected, of two WILLIAM HATLHER' slide-valves arranged to control opposite sides Witnesses: respectively of the aforesaid passage-way, and C. H. DoRER,

10 one of the slide-valves being large enough in 1 B. 0. BROWN. 

